Madison Sewerage District Unveils Phosphorus Harvesting Technology

Nutrient recovery takes a front seat in Madison, Wis., where phosphorus ends up in fertilizer instead of local waters.
Madison Sewerage District Unveils Phosphorus Harvesting Technology
On June 4, Wisconsin's first commercial nutrient recovery facility opened at Madison's Nine Springs WWTP. Pictured here are Joe Parisi, Dane County executive; Phillip Abrary, Ostara president; Robert F. Kennedy Jr., Ostara board member; Caryl Terrell, MMSD commission president, Michael Mucha, MMSD chief engineer and operator; and Fredric Corrigan, Ostara director and board chair.

In Madison, Wis., water is part of the culture. The city is home to Lake Monona and Lake Mendota, which act as an aquatic back yard for tourists, anglers and the city’s nearly 250,000 residents. When the Madison Metropolitan Sewerage District decided to invest in...

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